Frame for typewriting machines



- 1,627,773 May 1927 o. FISCHER FRAME FUR TYPEWRITING MACHINES OriginalFiled Jan.25, 1924 3 Sheets-Sheet 1 Fig.7.-

lnvenior Z 6 M66142? .liiorney 1,627,7 May 9 1927' o. FISCHER 73 FRAMEFOR TYPEWRITING MACHINES Original Filgd Jan.25, 1924 3 Sheets-Sheet?Fig.

o. FISCHER FRAME 30;: TYPEWBITING MACHINES May 10, 1927.

3 Sheets-Sheet 3 loriginal v Filed Jan; 55. 1924 Patented May 10, 1 927.

UYNITED STATES 1 1,627,773 ATENT OFFICE.

OSKAB rrscnnn, or BnnLrN-rmnnENAU, GERMANY, ASSIGNOB To 11. v. meme.

MAATSGHAPPIJ voa EANDEL EN mnus'rarn, or AMSTERDAM, HOLLAND, A con-PORATION OF HOLLAIN'D.

FRAME FOB TYPEWBI'I'IN G HACHINES.

Original application mul -January 25, 1924, Serial No. 688,399, and inGermany November 4,, 1918. Divided'xind this application filed April 10,1925. Serial No. 22,062.

My invention relates to improvements in frames for typewriting machines,and the object of the improvements is to provide a frame which is simplein construction and which can be manufactured at low cost.

. With this object in view my invention con sists 'in' constructing theframe from a top plate and a bottom plate both having cleats or barssecured thereto for bracing the same and connected bypillars of circularor square cross-section, which plates and pil- *lars are in part usedfor supporting certain parts of the mechanism of the machine.

For the purpose of explaining the invention' an example embodying thesame has been shown in the accompanying drawings in which the samereference characters have been used in all the views to indicatecorresponding parts. In said drawings,

Fig. 1, is a sectional elevation taken on the line 1 -1 of Fig. 2' andshowing" the frame and parts of the mechanism,

Fig. 2, is a sectional plan viewv of the machine taken on the line 2-2of Fig.1,

Fig. 3, is 'a' sectional elevation on an enlarged scale taken on theline 3 3 of Fig. 1 and showing a rail secured to the bottom plate, and4' Fig: 4, is a top jplanview of the machine with the top part of thepaper carriage removed and showing" the guide rails for thecarriage-secured to the top-plate.

In the example, shown in the drawings the frame of thetypewritirigmachine consists of bottom and top plates 1 and 2 braced bybars 3, 5,. 6, 7, 8, 9 nd 10 and rails .11 and 12 and connected" bypillars 13 to 22 in part of circularand 'in part of rectangularcross-sections and side and end frame members 23 to 26 and 4. as is.shown in Figs. 1 and 2. The frame is sup-'- 5' brackets secured to thebottom plate 1.

' the base frame through the intermediary Q ofleaf' springs 38, pieces39 of feltor the like being interposed between the springs and the-frame32. The feet 36, 37 are rovided with pieces 40, 41' of feltor ru bar tothe thereof. 1 havenoise caused bythe operation-of the 0perative partsis -reduced to a minimum.

The. in'ner parts of the machine are protected as against injury anddust by plates 42 to 45 of glass fitted in the frame members 3,4, 5, 6,7 and 8. The pillars 14, 15, 1'7 and 18 by horizontal braces 27, 28, 29and 30.

For a: better understanding of the invention 'I shall now brieflydescribe the manner of mounting the main parts of the mechanism of atypewriting machine on the frame, and I shall make reference to thetypewriting machine described in my cop'ending application Ser. No.688,399 which has matured into Patent 1,553,765,

are connected with one another dated Sept. 15, 1925, and of which thepresent application is a division. But I wish it to be understood thatmy invention is not limited to the use of'the frame in a machine of thetype described in the said ,rying a type cylinder 53. To the bottomface-.of the plate-,1 pillars69 are secured on which anelectromagnet 70is mounted the.

armature 71 of which is connected by a rod 72 with the plate 68, theobject of'the electromagnet and its armature being to throw the typecylinders against the platen 73. F urt her, brackets 58 aresecured tothe bottom face of the plate :1, and on the said brackets a rocker--57is mounted which is adapted to lift the type cylinder 53 through theintermediar of a-rod 59 acting on t e 17 bearings 67 are secured Ybottom end of t e stem 61 of the type cylin- .der 53. The rocker 57 isconnected by links 56 with shift key levers 54 mounted on Further,' thebottom provides a support for the following .members: brackets 52, .on I

-which the type key levers 48, 49 are mounted;

the bar 9,'providi g, an abutment for rockers" 74'c'arried by thetype kelevers; brackets 75, from wh chtyvo rocka le.frames 84 and 85 aresuspended, a rail 76, providing a suprear ends of the levers having abracket 79 secured thereto; angular pieces 80, for mounting anelectromagnet 64 on the bottom plate 1; an insulating block 81, carryingone of the terminals of an electric circuit; and blocks 82 and 83,supporting a circuit make-and-break device. On the pillars 21- and 22 arockable frame 86 is mounted which carries the armature 65 of theelectromagnet 64 and other arts. To the bottom face of the rail 4 aorizontal plate 47 is secured on which the tabulation eys 46 aremounted. The rails .11 and 12 secured to the top plate 2 provide guideways for the paper carriage 50. To the top plates other parts aresecured which, however, will not be described in detail.

Since my invention relates onl to the construction of the frame I deem1t not necessary to describe the mechanisms mounted thereon in detail Myimproved frame is simple and rigid in construction. Since all the partsof the frame are accessible all the mechanisms can be readily mountedthereon. The cost of the manufacture is low, because all the parts aresimple in construction, and can be manufactured independentl of eachother and before being assembled. n the construction of the frame thetop and bottom plates are cut from sheet metal, and all the bores areexactly drilled by means of patterns. Many parts of the mechanism of themachine are directly mounted on the said plates, and others are securedto the pillars and horizontal braces, which may be provided with thenecessary bores, brackets or hearing blocks before being assembled. Itwill be understood that this mode of manufacturing the frame is lessexpensive than the manufacture of a cast iron frame in which drillingand other work mustbe done in the complete frame in which the parts arenot always accessible and which must be successively placed on manymachine tools. The fpillars, bars and plates used in the maiiu acture ofmy improved frame are supplied by the market, and they are suflicientlyexact inform so that 'no fini ishing work is needed. Further, the saidparts are particularly suitable for a manufacture on a large scale, andthe work may be done by a large number of workmen.

Finally the assembling of the machine 'ma be done by sections, and mostof the wor may be done by unlearned workmen.

I claimf 1. A frame for typewriting machines, comprising a top plate, abottom plate, vertical pillars secured to said plates for connecting thesame, railsconstituting papercarriage guideways borne by the top plate,

and frame members to which said plates are at their edges secured. I

2. A frame for. typewriting machines, comprising a topplate, a bottomplate, vertical pillars secured to said plates for connecting the same,rails constituting pa ercarriage guideways borne by the top 9p ate,

comprising a base frame yieldingly borne upon supporting feet, and abottom plate resting upon cushions upon said base frame, pillars borneby said bottom plateboth upon its upper side and upon its lower side, a

platen-bearing top plate borne by certain of the said upper pillars, atype cylinder pivotally borne by other of said upper pillars, andatype-cylinder-operating electromagnet borne by said lower pillars.

In testimony whereof I hereunto afiix my signature.

i. FISCHER.

